Procurement teams shortlist WTB4S-3P3131 with Sick Laser Sensor, Sick Gtb6 P1211 and P&F Photoelectric Sensor, aligning budget approvals, warranty terms, and multisite availability for smoother rollout across plants.
Sick WTB4S-3P3131 Photoelectric Sensor
The Sick WTB4S-3P3131 Photoelectric Sensor offers a Rectangular design, 650 nm sensing range, PinPoint LED light source, PNP output, and β40 Β°C ... +60 Β°C connection. Manufactured by Sick under the Sick Photoelectric Sensor category, this model belongs to the WL Series.
| Brand | Sick |
| Product Type | Photoelectric Sensor |
| Model Number | WTB4S-3P3131 |
Sick WTB4S-3P3131 Photoelectric Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric retro-reflective sensor |
| Functional principle detail | Background suppression |
| Sensing range max. | 4 mm ... 120 mm |
| Sensing range | 10 mm ... 120 mm |
| Light source | PinPoint LED |
| Type of light | Visible red light |
| Light spot size (distance) | Γ 2.5 mm (50 mm) |
| Wave length | 650 nm |
| Adjustment | Potentiometer, 5 turns |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | < 5 Vpp |
| Current consumption | 20 mA 3) |
| Protection class | III |
| Digital Output type | PNP |
| Switching mode | Light switching |
| Output current Imax. | β€ 100 mA |
| Response time | < 0.5 ms |
| Switching frequency | 1,000 Hz |
| Housing | Rectangular |
| Design detail | Slim |
| Dimensions (W x H x D) | 12.2 mm x 41.8 mm x 17.3 mm |
| Connection | Cable with connector M8, 3-pin |
| Housing material | Plastic, ABS |
| Front screen material | Plastic, PMMA |
| Enclosure rating | IP67, IP66 |
| Ambient operating temperature | β40 Β°C ... +60 Β°C |
| Ambient temperature, storage | β40 Β°C ... +75 Β°C |
| Weight | 30 g |
The WTB4S-3P3131 Photoelectric Sensor by Sick features a robust background suppression system using a photoelectric retro-reflective principle, allowing it to detect objects within a range of 10 mm to 120 mm. This compact sensor emits visible red light at 650 nm through a PinPoint LED, creating a focused Γ 2.5 mm light spot at 50 mm distance, ideal for detecting small components or irregular surfaces. The five-turn potentiometer adjustment gives maintenance engineers the flexibility to fine-tune sensitivity based on application-specific needs.
With a fast response time of under 0.5 ms and a switching frequency of 1,000 Hz, the WTB4S-3P3131 ensures reliable detection even in high-speed automation lines. It operates on a standard 10β30 V DC power supply and consumes just 20 mA, supporting energy-efficient setups. The PNP output with light switching mode provides easy integration with existing control systems. Its rectangular ABS housing is both slim and durable, with dimensions of 12.2 mm Γ 41.8 mm Γ 17.3 mm and a secure M8, 3-pin cable connector. The enclosure offers industrial-grade protection with IP66 and IP67 ratings, making it suitable for dusty or humid conditions, and can operate in extreme temperatures from β40 Β°C to +60 Β°C.
Trusted in automotive assembly lines, packaging machinery, and material handling systems, the Sick WTB4S-3P3131 Photoelectric Sensor is valued for its durability, ease of alignment, and precise short-range detection. Whether you're optimizing space in a panel or ensuring fast response in motion applications, this sensor delivers dependable results.
